| Spec Clutches & Flywheels |
Clutches
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| Spec clutches are categorized in "stages". Below you'll find an explanation of each stage to help you make an informed clutch purchase. |
| Stage 1 |
| Types of Driving: Street, Drag, Drift, Road Race, Pulling, Autocross |
$209.00 |
For bolt on naturally aspirated and mildly modified forced induction engines. Stock-like daily drivability and very good wear characteristics.
High clamp pressure plate, steel-backed and multi-compound woven organic material and high torque sprung hub and disc assembly, bearing and tool kit.
Torque Capacity: 410 |
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| Stage 2 |
Types of Driving: Street, Drag, Pulling, Autocross
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$319.00 |
For all mild to moderately modified naturally aspirated and power adder engines. (Also good for stock power levels and spririted driving when good daily drivability and extremely long life are the goal.) Stock-like daily drivability and EXCELLENT wear characteristics.
High clamp pressure plate, pure Kevlar friction material and high torque sprung hub and disc assembly, bearing and tool kit.
Torque Capacity: 520 |
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| Stage 3 |
| Types of Driving: Street, Drag, Drift, Road Race, Pulling, Autocross |
$339.00 |
For heavily modified street and race engines. Offers sufficient daily drivability with a comfortable pedal feel and quick engagement. Offers good wear characteristics under low and high stress usage.
High clamp pressure plate, 4 or 6 puck carbon semi-metallic friction with high torque sprung hub and disc assembly, bearing and tool kit. 6 puck is standard on most applications, but 4 puck can be specified when ordering.
Torque Capacity: 680 |
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| Flywheels |
The automotive component most responsible for insuring optimum clutch performance and life is the flywheel. The flywheel's contribution to power transfer is three-fold.
Firstly, the flywheel should provide a consistent and friction enhancing surface for the clutch disc.
Flywheels also aid in proper inertia, which is determined by the flywheel weight. Inertia controls the ratio of power to acceleration and can make a vehicle faster or slower based on gear ratio, tire type, vehicle weight, power output and even the location in the powerband output is achieved. The weight of a flywheel and amount of inertia it provides can also effect drivability.
Lastly, the flywheel must provide a true balance at rpm, which means no dimensional runout that produces engine damaging and power robbing vibrations and allows smooth engine revolutions.
SPEC flywheels are CNC manufactured at an unheard-of .001 tolerance, in an industry where the standard is .010. This precision manufacturing process ensures perfect balance and a perfectly flat bedding surface for the clutch disc, both of which also contribute to the ultimate in safety for competitive environments. All SPEC flywheels carry SFI certification.
To allow for specific inertia needs, SPEC flywheels are made in high carbon billet steel and aircraft quality billet aluminum. The aluminum and most steel SPEC units are rebuildable and feature a replaceable steel friction plate that is made from a friction- enhancing steel metal specially formulated for optimum clutch bedding and holding power. The aluminum and steel materials provide a light and medium weight option for all types of racing. SPEC spends a lot of time and effort on research and development of optimum flywheel dimensions and weights for all types of driving and racing and can optimize your MOI (moment of inertia) to maximize your car's output and performance. |
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| 1979-1995 Steel Flywheel |
$239.00 |
Made of high-carbon billet steel and CNC machined at an .001 tolerance
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| 1979-1995 Aluminum Flywheel |
$369.00 |
Aircraft quality billet aluminum and CNC machined at an .001 tolerance.
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| 1996-2004 Steel Flywheel |
$249.00 |
Made of high-carbon billet steel and CNC machined at an .001 tolerance. Select the model year of your car. Different model years require different flywheels.
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| 1996-2004 Aluminum Flywheel |
$369.00 |
Aircraft quality billet aluminum and CNC machined at an .001 tolerance. Select the model year of your car. Different model years require different flywheels.
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